The survey also showed that due to the implementation of Obamacare, the number of uninsured working-age adults in the U.S. declined from 37 million (or 20% of the population) in 2010 to 29 million (or 16%) by the second half of last year.

The rise in people with health insurance meant also meant fewer people skipped going to the doctor in 2014.

“The number of adults who did not get needed health care because of cost declined from 80 million people, or 43 percent, in 2012 to 66 million, or 36 percent, in 2014,” researcher Sara Collins, Petra Rasmussen, Michelle Doty and Sophie Beutel wrote in their survey brief for The Commonwealth Fund.